float:left; HTML css div
nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">以后代码要用代码框编辑，要不然这样人家看也不方便。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><style type="text/css">#divmain{margin:0 auto;width:470px;background:#999;} #div1{float:left;margin:0 auto 0 20px;width:100px;height:100px;background:#fff;/* z-index=-1;*/} #div2{width:100px;height:100px;background:#CCC;} </style><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><body><div id="divmain">52345623546<div id="div1">10</div><div id="div2">20345345</div></div></body></html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><style type="text/css">#divmain{margin:0 auto;width:470px;background:#999;} #div1{float:left;margin:0 auto 0 20px;width:100px;height:100px;background:#fff;/* z-index=-1;*/} #div2{width:100px;height:100px;background:#CCC;} </style><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><body><div id="divmain">52345623546<div id="div1">10</div><div id="div2">20345345</div></div></body></html>
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